Structure 10177 · St. Clair County, MI
Carries Duce Road over Plum Creek Drain, Sec. 26-27 Greenwood Twp..
22 ft end to end. Lengths are drawn to scale; at this length a semi-truck would be a speck. Each part is colored by its latest inspection rating. The inventory records lengths but not heights or the layout of the shorter spans, so those are drawn as typical for a tee-beam bridge.
| State | Michigan |
| County | St. Clair |
| Location | Sec. 26-27 Greenwood Twp. |
| Carries | Duce Road |
| Crosses | Plum Creek Drain |
| Coordinates | 43.09510, -82.67802 |
| Material | Prestressed Concrete |
| Design | Tee Beam |
| Total Length | 22.0 ft (6.7 m) |
| Max Span | 18.7 ft (5.7 m) |
| Deck Width | 20.0 ft (6.1 m) |
| Deck Area | 40.9 sq m |
| Main Spans | 1 |
| Year Built | 1983 |
| Avg Daily Traffic | 67 (1994) |
| Lanes On Bridge | 2 |
| Last Inspection | December 2024 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Scour Critical | 5 — Stable for scour |
| Structure Number | 000000000010177 |
Inspectors rate each major part of a bridge (the deck you drive on, the superstructure of beams that holds it up, and the substructure of piers and abutments beneath) on a 0–9 scale. A bridge's overall condition is its lowest of those ratings, so one deteriorated component makes the whole bridge "poor."
A poor rating is not a closure. It means the bridge is flagged for priority repair or replacement; bridges judged unsafe are closed or posted with weight limits. The waterway (channel) rating is reported, but it does not count toward the overall classification.